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Finding the Fourth Proportional to 482,456.80, 665,870.10 and 267,666.06

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Solution

The fourth proportional to 482,456.80, 665,870.10 and 267,666.06 is: 369,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,456.80 : 665,870.10 = 267,666.06 : x
  2. Step 2: Convert to fraction form
    482,456.80/665,870.10 = 267,666.06/x
  3. Step 3: Cross multiply
    482,456.80x = 665,870.10 × 267,666.06
  4. Step 4: Simplify right side
    482,456.80x = 178,230,826,138.81
  5. Step 5: Solve for x
    x = 178,230,826,138.81/482,456.80
  6. Step 6: Final answer
    x = 369,423.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.